/*
 * @(#)GridMap.java	1.0 May 5, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.util;

import java.util.*;

public interface DualKeyMap<XKEY,YKEY,VALUE> extends Map<DualKeyMap.DualKey<XKEY,YKEY>, VALUE>
{
	static interface DualKey<XKEY,YKEY>
	{
		public XKEY getXKey();
		public YKEY getYKey();
		public int hashCode();
		public boolean equals(Object obj);
	}
//	static interface Entry<XKEY,YKEY,VALUE> extends Map.Entry<Key<XKEY,YKEY>, VALUE>
//	public void clear();
	public boolean containsXKey(XKEY xKey);
	public boolean containsYKey(YKEY yKey);
//	public Set<Entry<XKEY,YKEY,VALUE>> entrySet();
//	public boolean equals(Object obj);
	public VALUE get(XKEY xKey, YKEY yKey);
//	public int hashCode();
//	public boolean isEmpty();
	public Set<XKEY> getXKeySet();
	public Set<YKEY> getYKeySet();
	public VALUE put(XKEY xKey, YKEY yKey, VALUE value);
	public void putAll(DualKeyMap<XKEY, YKEY, VALUE> map);
	public VALUE remove(XKEY xKey, YKEY yKey);
//	public int size();
//	public Collection<VALUE> values();
}
